uxcell Fish Tank Air Valve Pump Tube Connector Flow Control, 1-in-4 Out Aquarium Air Valve; Material : Metal Color : Silver Tone; Design : Single Line 4 Way Outlet Fit Tube Dia.(Outlet) : 4mm/0.16";Fit Tube Dia.(Inlet) : 7mm/0.275" Overall Size : 8 x 5.5 x 2.3 cm/3.2" x 2.2" x 0.9" (L*W*H);Net Weight : 85g 1 x Aquarium Air Valve